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Beyond the Standard Model

- Professionally researched theories... strings, branes, & LQG
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Jan16-12 Greg Bernhardt
announcements, btsm, event Sticky Thread Pinned: BtSM Event Announcements ( 1 2 3 ... Last)
This sticky is for announcements of pertinent scientific events, such as conferences, seminars, or public talks. This...
Sep15-14 12:03 AM
marcus
72 67,987
Before posting anything, please review the Physics Forums Global Guidelines. If you are seeking help with a...
Jul14-12 08:32 AM
ZapperZ
1 26,944
Are changes in the frequencies of vibrating strings the cause of entropy? Does entropy also count in the case of...
Feb21-09 03:44 AM
Fra
8 2,590
I have a question about Witten's original 1998 paper on AdS/CFT http://arxiv.org/abs/hep-th/9802150 Since the...
Feb20-09 09:05 PM
jdstokes
0 1,238
Basically i am on an A-level research product and i have chosen to study string theory. I have explained particle...
Feb20-09 05:59 AM
dinah9312
5 4,509
Is it true that classical theories tend to treat matter 'in the limit' of large N, or it encodes matter in N_A as ...
Feb20-09 12:18 AM
sirchasm
1 1,116
How can string theory explain the results of Bell inequality experiments and experiments of similar inequalities?
Feb19-09 09:50 AM
Demystifier
1 4,110
Can someone explain what's Z2 symmetry ? Is it necessary to have it in a model, even SM ?
Feb17-09 11:20 AM
robousy
7 9,863
http://arxiv.org/abs/0902.1464 Does wave function collapse cause gravity? Authors: Lajos Diósi (Submitted on 9...
Feb17-09 03:38 AM
Fra
5 2,802
in diffeomorphism invariant theory, which is the meaning of the time in quantization? or in other words which is the...
Feb16-09 09:27 AM
marcus
1 1,440
I'm trying to build an explanatory theory that encompasses both the standard and cosmological standard models (isn't...
Feb11-09 06:29 PM
SimonA
8 1,818
Hello, What about gauging discrete groups ? (C, P, T (??), Flavour Groups, Fermionic number symmetry...)
Feb11-09 02:36 AM
Thomas Larsson
13 1,860
http://arxiv.org/abs/0902.1509 E(7(7)) and d=11 supergravity Authors: Christian Hillmann (Submitted on 9 Feb...
Feb10-09 07:18 AM
MTd2
0 1,504
Hi all ! I am curious about the possibility of knotted strings. If we can accept the propagation of closed loop...
Feb9-09 10:21 AM
Alwi
3 2,370
I've heard that some physicists think space-time is like a liquid. So why aren't we dissolving in it?
Feb9-09 12:00 AM
SodaBiscuit
15 3,560
I've been reading the Journal of remote mental control and non-locality <Crackpot Link Removed>, and Topological...
Feb7-09 08:39 AM
Doc Al
1 3,565
Sifting through ArXiv and other sources, I've found many documents on the topic of String Field Theory, perhaps the...
Feb5-09 11:17 PM
Coin
2 4,782
I'm beginning a research on the different approaches to QG (or also calssical QM) where the attempt to introduce the...
Feb5-09 09:36 PM
exponent137
4 3,453
Petr Horava attempts to start at this paper a small quantum gravity theory, like Loop Quantum Gravity, except that he,...
Feb5-09 03:35 AM
MTd2
8 9,366
I've been looking for (free) papers (probably 100+ pages) that are introductions to eleven-dimensional supergravity....
Feb4-09 03:16 PM
xepma
1 1,750
This is driving me nuts. Hope someone can explain this to me. To classify conformally inequivalent tori, one...
Feb4-09 03:03 PM
xepma
4 1,324
hi, Do the addition of non-linear terms in action play any significant role in string theory?? if so, what is its...
Feb4-09 11:43 AM
anuradha
3 1,366
Hi folks ! I have always felt that string theory can be generalized somewhat further via the inclusion of knotted...
Feb2-09 11:24 PM
Alwi
0 1,466
Maybe someone could inform me a little on what I'm talking about, because, honestly, I have no idea. If 11...
Feb2-09 03:24 PM
Coin
2 1,168
I have a theory about fast variable G, (a few approaches) but almost no comments on this. ...
Feb1-09 08:09 PM
exponent137
0 1,092
In a video I watched, which I can't find now, Leonard Susskind briefly mentions something about scientists recently...
Jan31-09 09:15 PM
atyy
1 1,618
Is the number of lepton generations in string theory restricted to 3? Or is this "landscape dependent"? I don't...
Jan30-09 08:29 PM
JustinLevy
6 1,653
Questions: Where can I obtain the most advanced published papers regarding valid unification theories? If there are...
Jan30-09 04:11 PM
Potential
3 1,344
Anyon are particular 2 dimensionsional objects and so is the worldsheet critical superstrings. But given that those 2...
Jan30-09 10:29 AM
xepma
3 1,370
In Szabo's book on string theory he calculates the vacuum to vacuum one loop (genus one) diagram. The...
Jan28-09 08:45 PM
nrqed
2 1,261
ABSTRACT Parity no conservation in the  decay processes is considered as fundamental property of weak...
Jan28-09 12:11 PM
Stanislav
0 1,142
I am wondering if string theory says anything about how only some vibrational patterns lead to mass while a few don't,...
Jan28-09 10:42 AM
Naty1
0 1,260
Why do strings only have one dimension (or maybe branes have 2 dimensions)? Why aren't oscillating volumes (like a...
Jan27-09 03:14 PM
Coin
9 1,946
Does anyone know if M-Theory is that same as Superstring Field Theory?
Jan26-09 08:15 PM
Coin
3 1,464
I don't have much of a math/physics background, undergraduate physics and calculus is where I stopped... yet I find...
Jan26-09 07:27 PM
bockerse
136 29,672
Is there not an inherent paradox in Amelino-Camelia’s DSR (Doubly special relativity)? Every solid piece of matter...
Jan26-09 07:02 PM
jambaugh
3 1,032
In a recent lecture on String Theory, we encountered the divergent sum 1+2+3+.... when calculating the zero mode...
Jan26-09 03:17 AM
Thomas Larsson
2 2,623
http://streamer.perimeterinstitute.ca:81/mediasite/viewer/FrontEnd/Front.aspx?&shouldResize=False scroll down the...
Jan24-09 11:47 AM
Core2duo
126 12,528
In a recent lecture on bosonic String Theory, we encountered the divergent Sum 1+2+3+... when calculating the zero...
Jan24-09 05:54 AM
Orbb
0 2,347
In a recent lecture on bosonic string theory, we calculated the Virasoro operators, especially the zero mode,...
Jan24-09 05:50 AM
Orbb
0 1,917
http://sciencewatch.com/dr/erf/maps/08decerfBaggETRFM/#156486489 This is an interesting development in String/M,...
Jan23-09 12:48 AM
marcus
1 2,041
Why we are searching quantum gravity effect at the planck scale? The question seems very stupid (and may be) but let...
Jan22-09 06:58 AM
luxxio
3 1,704

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